84 citations · 550 across the 31 of their papers we have counts for
31 papers
Flux driven and geometry controlled spin filtering for arbitrary spins in aperiodic quantum networks
Amrita Mukherjee, Arunava Chakrabarti, Rudolf A. Roemer
We demonstrate that an aperiodic array of certain quantum networks comprising magnetic and non-magnetic atoms can act as perfect spin filters for particles with arbitrary spin stat…
Non-equilibrium transport through a disordered molecular nanowire
P. Thiessen, E. Diaz, R. A. Roemer +1
We investigate the non-equilibrium transport properties of a disordered molecular nanowire. The nanowire is regarded as a quasi-one-dimensional organic crystal composed of self-ass…
'Digital' Electron Diffraction - Seeing the Whole Picture
Richard Beanland, Paul J. Thomas, David I. Woodward +2
The advantages of convergent beam electron diffraction for symmetry determination at the scale of a few nm are well known. In practice, the approach is often limited due to the res…
Magnetoplasmons and SU(4) symmetry in graphene
Andrea M. Fischer, Rudolf A. Roemer, Alexander B. Dzyubenko
We study magnetoplasmons or neutral collective excitations of graphene in a strong perpendicular magnetic field, which can be modelled as bound electron-hole pairs. The SU(4) symme…
Localized Collective Excitations in Doped Graphene in Strong Magnetic Fields
A. M. Fischer, A. B. Dzyubenko, R. A. Roemer
We consider collective excitations in graphene with filled Landau levels (LL's) in the presence of an external potential due to a single charged donor D+ or acceptor A- impurity. W…
Optimisation of multifractal analysis using box-size scaling
Alberto Rodriguez, Louella J. Vasquez, Rudolf A. Roemer
We study various box-size scaling techniques to obtain the multifractal properties, in terms of the singularity spectrum f(alpha), of the critical eigenstates at the metal-insulato…